wgrib2: -v -v0 -v2

Introduction

Wgrib2 has multiple levels of verbosity. The lowest level (0) is
the default and set by
-v0. The next level is 1 and is set by
-v. Really verbose is set by
-v2. Debugging is set by level 99.
Note that the verbosity can be changed multiple times on
the command line.